Quote ="jonh"not sure mate but i do not know of any, there may be one or 2 but i would not think any more than that if any.
Any club with a bit of cash should make them a priority piece of kit, but with money being tight at most clubs i would be very surprised if they were common place.
What is fantastic about them is they take out the guess work when calculating a players work to rest ratio for whatever there training aim is, ie hypertrophy, strength/strength endurance, power/power endurance.
Recovery rates are crucial in targeting these goals and now we will have info related to resting pulse rate and heart rate training zones with real time information to the trainers which will ensure the players are training what the coaches want them to.
Its a piece of kit i have mentioned in the past we should invest in after going to some Union clubs, and personally think it will give us an advantage over any team who does not use this technology.
Rugby League is quickly becoming a game of millimetres with the game breaking plays coming down to the tiniest of margins, this will undoubtedly aid us in my opinion.'"
The reason I asked is because Leeds look far fitter than any other SL team. If any one is using it I would have said them.